US20070278173A1 - Child-resistant closure and container package - Google Patents
Child-resistant closure and container package Download PDFInfo
- Publication number
- US20070278173A1 US20070278173A1 US11/447,633 US44763306A US2007278173A1 US 20070278173 A1 US20070278173 A1 US 20070278173A1 US 44763306 A US44763306 A US 44763306A US 2007278173 A1 US2007278173 A1 US 2007278173A1
- Authority
- US
- United States
- Prior art keywords
- annular wall
- wall
- closure
- edge
- neck finish
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 239000002991 molded plastic Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002483 medication Methods 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/06—Threaded or like caps or cap-like covers secured by rotation with bayonet cams, i.e. removed by first pushing axially to disengage the cams and then rotating
- B65D41/065—Threaded or like caps or cap-like covers secured by rotation with bayonet cams, i.e. removed by first pushing axially to disengage the cams and then rotating with integral internal sealing means
Definitions
- the present disclosure relates to child-resistant closure and container packages, such as medication packages for example, and to closures and containers for such packages.
- the present disclosure relates to push-and-turn child-resistant packages of the type in which internal lugs on a closure skirt are received in pockets on the undersides of external projections on the container neck finish, and in which the closure is biased by one or more spring elements to retain the lugs in the pockets. Axial pressure on the closure against the force of the spring element(s) and simultaneous turning of the closure with respect to the container permits removal of the closure from the container neck finish.
- Packages of this type conventionally are employed for prescriptions, vitamins and other medications, and for a number of other applications such as laundry products. See, for example, U.S. Pat. Nos. 4,057,159, 4,059,198 and 4,485,932.
- the present disclosure relates to improvements in such packages, and to closures and containers for such packages, that facilitate automated application of the closure to the container neck finish.
- the present disclosure embodies a number of aspects that can be implemented separately from or in combination with each other.
- a child-resistant package in accordance with one aspect of the present disclosure includes a container having a neck finish with an open mouth, an angularly spaced array of external projections with notches on undersides of the projections, and a conical internal surface around the mouth.
- a closure has a base wall, a first annular wall with angularly spaced internal lugs received within the notches, and a second annular wall disposed radially inwardly from the first annular wall and in resilient sealing engagement with the internal surface on the container neck finish.
- the second annular wall has a substantially cylindrical portion adjacent to the base wall and a conical portion extending from the cylindrical portion at an angle inwardly from the first annular wall and away from the base wall.
- the conical portion of the second annular wall has an edge remote from the base wall that is spaced from the internal surface of the container neck finish. This angulated free edge of the second annular wall helps prevent interference between the second annular wall and the container mouth during automated application of the closure to the container neck finish.
- a child-resistant closure in accordance with another aspect of the disclosure includes a one-piece molded plastic shell having a base wall, a first annular wall with angularly spaced internal lugs and a second annular wall disposed radially inwardly from the first annular wall.
- the second annular wall as molded has a cylindrical portion adjacent to the base wall, and a conical portion extending from the cylindrical portion and at an angle inwardly from the first annular wall and away from the base wall.
- the internal lugs on the first annular wall preferably have convex radially inwardly facing surfaces. Each of these surfaces has a clockwise edge and a counterclockwise edge as viewed from the base wall of the closure.
- the clockwise edge of the surface preferably is closer than the counterclockwise edge to an inside surface of the first annular wall.
- the radially inwardly facing surface of each lug preferably has a first portion with a uniform radius of curvature from the clockwise edge to a position adjacent to but spaced from the counterclockwise edge, and a second portion that is flat from said first portion to said counterclockwise edge.
- a molded plastic container in accordance with a further aspect of the present disclosure includes a neck finish having an open mouth, an angularly spaced array of external projections with notches on undersides of the projections, and a conical internal surface around the mouth.
- the conical internal surface has a first portion adjacent to the mouth and a second portion extending from the first portion. The second portion is at an angle greater than the first portion with respect to an axis of the container neck finish.
- This surface configuration is adapted to cooperate with a spring/seal wall on the closure to bias the closure away from the container neck finish when the closure is over-applied to a container neck finish.
- FIG. 1 is a fragmentary sectional view of a closure and container package in accordance with an exemplary embodiment of the present disclosure
- FIG. 2 is an enlarged view of the portion of FIG. 1 within the area 2 ;
- FIG. 3 is an elevational view of the container in the package of FIGS. 1 and 2 ;
- FIG. 4 is a top plan view of the container in FIG. 3 ;
- FIG. 5 is a fragmentary sectional view taken substantially along the line 5 - 5 in FIG. 3 ;
- FIG. 6 is a sectional view of the closure in the package of FIGS. 1 and 2 ;
- FIG. 7 is a bottom plan view of the closure in FIG. 6 ;
- FIG. 8 is a fragmentary sectional view on an enlarged scale of the portion of FIG. 6 within the area 8 ;
- FIG. 9 is a fragmentary sectional view on an enlarged scale taken substantially along the line 9 - 9 in FIG. 6 .
- FIGS. 1-2 illustrate a closure and container package 20 in accordance with an exemplary embodiment of the present disclosure.
- Package 20 includes a container 22 having a neck finish 24 with a closure 26 secured thereto.
- Container 22 and closure 26 preferably are each of one-piece molded plastic construction.
- Container 22 is illustrated in greater detail in FIGS. 3-5 .
- Neck finish 24 has an open mouth and a plurality of angularly spaced external projections 28 .
- Each external projection 28 has an underside with a notch 30 .
- the upper edge of each projection 28 includes a first portion 32 at a slight helical angle with respect to the axis of the neck finish, and a second portion 34 partially underlying the adjacent projection 28 and at a greater helical angle to the axis of the neck finish.
- a wall 36 extends axially adjacent to each notch 30 to function as a stop against over-application of the closure to the neck finish.
- Neck finish 24 also has an internal conical surface 38 adjacent to the container mouth.
- Internal surface 38 is a compound surface that includes a first conical portion 40 at the open end of the container mouth and a second conical portion 42 that extends from first portion 40 .
- second portion 42 is at a greater angle to the axis of the container neck finish than is the first portion 40 .
- Surface portions 40 , 42 are connected to each other by a concave surface portion 44 .
- first conical surface portion 40 may be at an angle of about 12° to the axis of the neck finish and second conical surface portion 42 at an angle of about 20°. This greater angle at surface portion 42 helps closure 26 to “spring back” away from the neck finish and facilitates automated application of the closure to the neck finish.
- Closure 26 is illustrated in detail in FIGS. 6-9 .
- Closure 26 is of one piece molded plastic construction and includes a base wall 46 , an outer first annular wall or skirt 48 and an inner second annular wall 50 , both integrally extending from base wall 46 .
- Annular walls 48 , 50 preferably are coaxial.
- First annular 48 has a plurality of angularly spaced internal lugs 52 that correspond in number and angular spacing with external projections 28 on container neck finish 24 , specifically four internal lugs 52 at ninety degree spacing corresponding to four external projections 28 in the exemplary embodiment of the disclosure. Referring in particular to FIG.
- each internal lug 52 has a concave radially inner surface with a clockwise edge 56 and a counterclockwise edge 58 as viewed from closure base wall 46 ( FIGS. 6 and 8 ).
- Clockwise edge 56 is closer to the inside surface 60 of first annular wall or skirt 48 than is counterclockwise edge 58 , as clearly shown in FIG. 9 .
- the radially inner surface of each lug 52 preferably includes a curving first portion 62 of uniform radius of curvature extending from clockwise edge 56 to a position adjacent to but spaced from counterclockwise edge 58 , and a flat second portion 64 extending from first portion 62 to counterclockwise edge 58 .
- Edges 56 , 58 preferably are rounded.
- the radially inner convex surface geometry of lugs 52 particularly surface portions 62 , helps prevent jamming of the lugs on projections 28 of the container neck finish during automated application of the closure to the container neck finish.
- second annular wall 50 of closure 26 functions as a spring/seal wall in package 20 —i.e., functions both to seal the package and to bias the closure away from the container neck finish.
- second annular wall 50 in the closure as molded preferably includes a cylindrical first portion 66 adjacent to and contiguous with closure base wall 46 , and a second portion 68 extending from the free end of first portion 66 .
- Second portion 68 preferably is conical in the closure as molded, extending axially away from base wall 46 and radially inwardly from first annular wall or skirt 48 .
- second portion 68 is at an angle of about 32° with respect to the axis of the closure.
- Conical end portion 68 of wall 50 helps prevent interference between wall 50 and container neck finish 24 during automated application of the closure to the container neck finish.
- Base wall 46 includes a circular first portion 70 within annular wall 50 and an annular second portion 72 between wall 50 and wall 48 .
- First portion 70 preferably is thicker than second portion 72 .
- second annular wall 50 is brought into contact with internal surface 38 of container neck finish 24 and closure internal lugs 52 are brought into contact with surfaces 32 of container external projections 28 .
- the spiral geometry of surfaces 32 facilitates application of the closure by clockwise rotation of the closure with respect to the container neck finish (or counterclockwise rotation of the container with respect to the closure).
- second annular wall 50 slides along internal surface 38 , particularly along first portion 40 and onto second portion 42 of internal surface 38 .
Abstract
Description
- The present disclosure relates to child-resistant closure and container packages, such as medication packages for example, and to closures and containers for such packages.
- The present disclosure relates to push-and-turn child-resistant packages of the type in which internal lugs on a closure skirt are received in pockets on the undersides of external projections on the container neck finish, and in which the closure is biased by one or more spring elements to retain the lugs in the pockets. Axial pressure on the closure against the force of the spring element(s) and simultaneous turning of the closure with respect to the container permits removal of the closure from the container neck finish. Packages of this type conventionally are employed for prescriptions, vitamins and other medications, and for a number of other applications such as laundry products. See, for example, U.S. Pat. Nos. 4,057,159, 4,059,198 and 4,485,932. The present disclosure relates to improvements in such packages, and to closures and containers for such packages, that facilitate automated application of the closure to the container neck finish.
- The present disclosure embodies a number of aspects that can be implemented separately from or in combination with each other.
- A child-resistant package in accordance with one aspect of the present disclosure includes a container having a neck finish with an open mouth, an angularly spaced array of external projections with notches on undersides of the projections, and a conical internal surface around the mouth. A closure has a base wall, a first annular wall with angularly spaced internal lugs received within the notches, and a second annular wall disposed radially inwardly from the first annular wall and in resilient sealing engagement with the internal surface on the container neck finish. The second annular wall has a substantially cylindrical portion adjacent to the base wall and a conical portion extending from the cylindrical portion at an angle inwardly from the first annular wall and away from the base wall. The conical portion of the second annular wall has an edge remote from the base wall that is spaced from the internal surface of the container neck finish. This angulated free edge of the second annular wall helps prevent interference between the second annular wall and the container mouth during automated application of the closure to the container neck finish.
- A child-resistant closure in accordance with another aspect of the disclosure includes a one-piece molded plastic shell having a base wall, a first annular wall with angularly spaced internal lugs and a second annular wall disposed radially inwardly from the first annular wall. The second annular wall as molded has a cylindrical portion adjacent to the base wall, and a conical portion extending from the cylindrical portion and at an angle inwardly from the first annular wall and away from the base wall. The internal lugs on the first annular wall preferably have convex radially inwardly facing surfaces. Each of these surfaces has a clockwise edge and a counterclockwise edge as viewed from the base wall of the closure. The clockwise edge of the surface preferably is closer than the counterclockwise edge to an inside surface of the first annular wall. The radially inwardly facing surface of each lug preferably has a first portion with a uniform radius of curvature from the clockwise edge to a position adjacent to but spaced from the counterclockwise edge, and a second portion that is flat from said first portion to said counterclockwise edge. This lug surface configuration facilitates automated application of the closure to a container neck finish.
- A molded plastic container in accordance with a further aspect of the present disclosure includes a neck finish having an open mouth, an angularly spaced array of external projections with notches on undersides of the projections, and a conical internal surface around the mouth. The conical internal surface has a first portion adjacent to the mouth and a second portion extending from the first portion. The second portion is at an angle greater than the first portion with respect to an axis of the container neck finish. This surface configuration is adapted to cooperate with a spring/seal wall on the closure to bias the closure away from the container neck finish when the closure is over-applied to a container neck finish.
- The disclosure, together with additional objects, features, advantages and aspects thereof, will best be understood from the following description, the appended claims and the accompanying drawings, in which:
-
FIG. 1 is a fragmentary sectional view of a closure and container package in accordance with an exemplary embodiment of the present disclosure; -
FIG. 2 is an enlarged view of the portion ofFIG. 1 within thearea 2; -
FIG. 3 is an elevational view of the container in the package ofFIGS. 1 and 2 ; -
FIG. 4 is a top plan view of the container inFIG. 3 ; -
FIG. 5 is a fragmentary sectional view taken substantially along the line 5-5 inFIG. 3 ; -
FIG. 6 is a sectional view of the closure in the package ofFIGS. 1 and 2 ; -
FIG. 7 is a bottom plan view of the closure inFIG. 6 ; -
FIG. 8 is a fragmentary sectional view on an enlarged scale of the portion ofFIG. 6 within thearea 8; and -
FIG. 9 is a fragmentary sectional view on an enlarged scale taken substantially along the line 9-9 inFIG. 6 . -
FIGS. 1-2 illustrate a closure and container package 20 in accordance with an exemplary embodiment of the present disclosure. Package 20 includes acontainer 22 having aneck finish 24 with aclosure 26 secured thereto.Container 22 andclosure 26 preferably are each of one-piece molded plastic construction. -
Container 22 is illustrated in greater detail inFIGS. 3-5 . Neckfinish 24 has an open mouth and a plurality of angularly spacedexternal projections 28. Eachexternal projection 28 has an underside with anotch 30. The upper edge of eachprojection 28 includes afirst portion 32 at a slight helical angle with respect to the axis of the neck finish, and asecond portion 34 partially underlying theadjacent projection 28 and at a greater helical angle to the axis of the neck finish. Awall 36 extends axially adjacent to eachnotch 30 to function as a stop against over-application of the closure to the neck finish.Neck finish 24 also has an internalconical surface 38 adjacent to the container mouth.Internal surface 38 is a compound surface that includes a firstconical portion 40 at the open end of the container mouth and a secondconical portion 42 that extends fromfirst portion 40. As best seen inFIG. 5 ,second portion 42 is at a greater angle to the axis of the container neck finish than is thefirst portion 40.Surface portions concave surface portion 44. By way of example only, firstconical surface portion 40 may be at an angle of about 12° to the axis of the neck finish and secondconical surface portion 42 at an angle of about 20°. This greater angle atsurface portion 42 helpsclosure 26 to “spring back” away from the neck finish and facilitates automated application of the closure to the neck finish. - Closure 26 is illustrated in detail in
FIGS. 6-9 . Closure 26 is of one piece molded plastic construction and includes abase wall 46, an outer first annular wall orskirt 48 and an inner secondannular wall 50, both integrally extending frombase wall 46.Annular walls internal lugs 52 that correspond in number and angular spacing withexternal projections 28 oncontainer neck finish 24, specifically fourinternal lugs 52 at ninety degree spacing corresponding to fourexternal projections 28 in the exemplary embodiment of the disclosure. Referring in particular toFIG. 9 , eachinternal lug 52 has a concave radially inner surface with aclockwise edge 56 and acounterclockwise edge 58 as viewed from closure base wall 46 (FIGS. 6 and 8 ). Clockwiseedge 56 is closer to theinside surface 60 of first annular wall orskirt 48 than iscounterclockwise edge 58, as clearly shown inFIG. 9 . The radially inner surface of eachlug 52 preferably includes a curvingfirst portion 62 of uniform radius of curvature extending from clockwiseedge 56 to a position adjacent to but spaced fromcounterclockwise edge 58, and a flatsecond portion 64 extending fromfirst portion 62 tocounterclockwise edge 58.Edges lugs 52, particularlysurface portions 62, helps prevent jamming of the lugs onprojections 28 of the container neck finish during automated application of the closure to the container neck finish. - As shown in
FIGS. 1 and 2 , secondannular wall 50 ofclosure 26 functions as a spring/seal wall in package 20—i.e., functions both to seal the package and to bias the closure away from the container neck finish. Referring toFIG. 8 , secondannular wall 50 in the closure as molded preferably includes a cylindricalfirst portion 66 adjacent to and contiguous withclosure base wall 46, and asecond portion 68 extending from the free end offirst portion 66.Second portion 68 preferably is conical in the closure as molded, extending axially away frombase wall 46 and radially inwardly from first annular wall orskirt 48. In an exemplary embodiment of the disclosure,second portion 68 is at an angle of about 32° with respect to the axis of the closure.Conical end portion 68 ofwall 50 helps prevent interference betweenwall 50 and container neck finish 24 during automated application of the closure to the container neck finish.Base wall 46 includes a circularfirst portion 70 withinannular wall 50 and an annularsecond portion 72 betweenwall 50 andwall 48.First portion 70 preferably is thicker thansecond portion 72. - During application of the closure to the container neck finish, spring/seal second
annular wall 50 is brought into contact withinternal surface 38 ofcontainer neck finish 24 and closureinternal lugs 52 are brought into contact withsurfaces 32 of containerexternal projections 28. The spiral geometry ofsurfaces 32 facilitates application of the closure by clockwise rotation of the closure with respect to the container neck finish (or counterclockwise rotation of the container with respect to the closure). During such application of the closure to the container neck finish, secondannular wall 50 slides alonginternal surface 38, particularly alongfirst portion 40 and ontosecond portion 42 ofinternal surface 38. When lugs 52 hitwalls 36 ofneck finish 24, the lugs are aligned withnotches 30 and the closure can be released by the automated equipment. The spring force generated by secondannular wall 50 againstsurface 38 ofneck finish 28 urges the lugs intonotches 30 to complete the capping operation. At this point, the free edge ofwall portion 68 is spaced fromsurface 38, as best seen inFIG. 2 . Inward pressure on spring/sealannular wall 50 fromneck finish surface 38 may causewall portion 66 resiliently to assume a slightly conical geometry, as shown inFIG. 2 . Thus,wall portion 66 in assembly with the container is described as being “substantially cylindrical.” To remove the closure, the closure is pressed downwardly overneck finish 24 against the spring/seal force ofannular wall 50 againstsurface 38 untillugs 52clear notches 30. The greater angle ofwall portion 42 with respect to the axis of the neck finish applies a greater spring force to the closure to facilitate removal. The closure is then twisted in a counterclockwise direction with respect to the neck finish to remove the closure from the container neck finish. - There thus have been disclosed a child-resistant closure and container package, and a closure and a container for such a package, that fully satisfy all of the objects and aims previously set forth. The disclosure has been presented in conjunction with an exemplary presently preferred embodiment, and a number of modifications and variations have been discussed. Other modifications and variations readily will suggest themselves to persons of ordinary skill in the art in view of the foregoing description. The disclosure is intended to embrace all such modifications and variations as fall within the spirit and broad scope of the appended claims.
Claims (13)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US11/447,633 US7819265B2 (en) | 2006-06-06 | 2006-06-06 | Child-resistant closure and container package |
PCT/US2007/012861 WO2007145842A2 (en) | 2006-06-06 | 2007-05-31 | Child-resistant package and closure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/447,633 US7819265B2 (en) | 2006-06-06 | 2006-06-06 | Child-resistant closure and container package |
Publications (2)
Publication Number | Publication Date |
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US20070278173A1 true US20070278173A1 (en) | 2007-12-06 |
US7819265B2 US7819265B2 (en) | 2010-10-26 |
Family
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Application Number | Title | Priority Date | Filing Date |
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US11/447,633 Active 2029-05-13 US7819265B2 (en) | 2006-06-06 | 2006-06-06 | Child-resistant closure and container package |
Country Status (2)
Country | Link |
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US (1) | US7819265B2 (en) |
WO (1) | WO2007145842A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US8424695B2 (en) | 2011-06-22 | 2013-04-23 | Van Blarcom Closures, Inc. | Spring action child resistant closure and container |
EP2702943A1 (en) * | 2012-08-27 | 2014-03-05 | SARSTEDT AG & Co. | Device for withdrawing body liquids and method for fitting such a device |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100757795B1 (en) * | 2006-06-21 | 2007-09-11 | 채동석 | Closure and a container having the same |
US8333288B2 (en) | 2011-01-10 | 2012-12-18 | Sonoco Development, Inc. | Child resistant container having cap and locking ring |
USD869279S1 (en) | 2017-08-02 | 2019-12-10 | Phoenix Closures Inc | Container |
US10850898B2 (en) | 2018-12-21 | 2020-12-01 | Henkel IP & Holding GmbH | Child-resistant container having cap retainer features |
US10822148B2 (en) | 2018-12-21 | 2020-11-03 | Henkel IP & Holding GmbH | Container and cap having tamper-evident member |
US10961031B2 (en) * | 2018-12-24 | 2021-03-30 | Target Brands, Inc. | Container assembly with locking closure |
US11358764B2 (en) * | 2020-05-28 | 2022-06-14 | Henkel Ag & Co. Kgaa | Child-resistant container having cap retainer features |
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US20050263477A1 (en) * | 2003-10-13 | 2005-12-01 | Konefal Robert S | Closure and container package with child-resistant and non-child-resistant modes of operation |
US20050269280A1 (en) * | 2004-01-30 | 2005-12-08 | Konefal Robert S | Child-resistant closure and container package |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8424695B2 (en) | 2011-06-22 | 2013-04-23 | Van Blarcom Closures, Inc. | Spring action child resistant closure and container |
EP2702943A1 (en) * | 2012-08-27 | 2014-03-05 | SARSTEDT AG & Co. | Device for withdrawing body liquids and method for fitting such a device |
Also Published As
Publication number | Publication date |
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US7819265B2 (en) | 2010-10-26 |
WO2007145842A2 (en) | 2007-12-21 |
WO2007145842A3 (en) | 2008-02-07 |
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